January weather forecast
Riner, WY

Share

Weather in January

January, like December, is a freezing cold winter month in Riner, Wyoming, with an average temperature fluctuating between 13.3°F (-10.4°C) and 27°F (-2.8°C).

Temperature

During January, the average high-temperature is a still subzero cold 27°F (-2.8°C), maintaining a close resemblance to that of the preceding month. Nighttime temperature in Riner lowers to an average of 13.3°F (-10.4°C) in January.

Humidity

January and February, with an average relative humidity of 83%, are the most humid months in Riner.

Rainfall

In Riner, in January, during 6.2 rainfall days, 0.79" (20mm) of precipitation is typically accumulated. Throughout the year, there are 81.7 rainfall days, and 9.72" (247mm) of precipitation is accumulated.

Snowfall

Months with snowfall are January through May, October through December. In Riner, during January, snow falls for 13.9 days and regularly aggregates up to 4.49" (114mm) of snow. Throughout the year, in Riner, there are 80.6 snowfall days, and 33.39" (848mm) of snow is accumulated.

Daylight

In January, the average length of the day is 9h and 34min.
On the first day of the month, sunrise is at 7:37 am and sunset at 4:50 pm. On the last day of January, in Riner, sunrise is at 7:23 am and sunset at 5:23 pm MST.

Sunshine

In January, the average sunshine in Riner is 6h.

UV index

The months with the lowest UV index in Riner are January through April, October through December, with an average maximum UV index of 2. A UV Index of 2, and less, symbolizes a minimal health vulnerability from exposure to the Sun's UV rays for the average person.
Note: In January, the maximum UV index of 2 transforms into these recommendations:
Children, infants, and individuals with sensitive skin should be constantly protected from extended sun exposure. To protect against the Sun's most potent rays, avoid direct exposure around midday. Boost your sun resistance with garments that are densely woven yet spacious. Be mindful! The reflection from snow can increase the Sun's UV radiation nearly twice.
Updated: Feb 14, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How cold is it in Riner in January?

The average high-temperature, in January, in Riner, is 27°F (-2.8°C), while the average low-temperature is 13.3°F (-10.4°C).

What is the most humid month in Riner?

The months with the highest humidity are January and February, with an average relative humidity of 83%.

What is the average humidity in January in Riner?

In Riner, Wyoming, the average relative humidity in January is 83%.

How much does it rain in Riner in January?

In January, in Riner, the rain falls for 6.2 days. Throughout January, 0.79" (20mm) of precipitation is accumulated.

How many days does it snow in January in Riner?

In Riner, in January, during 13.9 snowfall days, 4.49" (114mm) of snow is typically accumulated.

How many hours of daylight does Riner have in January?

The average day length in January is 9h and 34min.

When are sunrise and sunset in January in Riner?

In January, on the first day of the month, sunrise is at 7:37 am and sunset at 4:50 pm. On the last day of the month, in Riner, Wyoming, sunrise is at 7:23 am and sunset at 5:23 pm MST.

How many hours of sunshine does Riner have in January?

The average sunshine duration in January in Riner, Wyoming, is 6h.

What are the months with the lowest UV index in Riner?

January through April, October through December, with an average maximum UV index of 2, are months with the lowest UV index.

What is the UV index reading in January in Riner?

In January, the average daily maximum UV index in Riner is 2. A UV Index estimate of 2, and below, represents a low health risk from exposure to the Sun's UV radiation.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in January
Riner, WY

Average temperature in January - Riner, WY
  • Average high temperature in January: 27°F

The warmest month (with the highest average high temperature) is July (81°F).
The month with the lowest average high temperature is December (26.4°F).

  • Average low temperature in January: 13.3°F

The month with the highest average low temperature is July (57.9°F).
The coldest month (with the lowest average low temperature) is January (13.3°F).

Average pressure in January
Riner, WY

Average pressure in January - Riner, WY
  • Average pressure in January: 30.23"Hg

The month with the highest atmospheric pressure is January (30.23"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).

Average wind speed in January
Riner, WY

Average wind speed in January - Riner, WY
  • Average wind speed in January: 12.7mph

The windiest month (with the highest average wind speed) is November (13.2mph).
The calmest months (with the lowest average wind speed) are July and August (9.5mph).

Average humidity in January
Riner, WY

Average humidity in January - Riner, WY
  • Average humidity in January: 83%

The months with the highest relative humidity are January and February (83%).
The months with the lowest relative humidity are July and August (35%).

Average rainfall in January
Riner, WY

Average rainfall in January - Riner, WY
  • Average rainfall in January: 0.79"

The wettest month (with the highest rainfall) is April (1.42").
The driest month (with the least rainfall) is August (0.35").

Average rainfall days in January
Riner, WY

Average rainfall days in January - Riner, WY
  • Average rainfall days in January: 6.2 days

The month with the highest number of rainy days is May (11.7 days).
The month with the least rainy days is November (3.2 days).

Average snowfall in January
Riner, WY

Average snowfall in January - Riner, WY
  • Average snowfall in January: 4.49"

The month with the highest snowfall is April (5.75").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in January
Riner, WY

Average snowfall days in January - Riner, WY
  • Average snowfall days in January: 13.9 days

The month with the highest number of snowfall days is February (14.6 days).
The months with the least snowfall days are June, July and August (0 days).

Average daylight in January /
Average sunshine in January
Riner, WY

Average daylight in January / Average sunshine in January - Riner, WY
  • Average daylight in January: 9h and 4min

The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 12min).

  • Average sunshine in January: 6h and 0min

The month with the most sunshine is July (Average sunshine: 12h and 0min).
The month with the least sunshine is February (Average sunshine: 5h and 48min).

Average sunshine days in January
Riner, WY

Average sunshine days in January - Riner, WY
  • Average sunshine days in January: 15.3 days

The month with the most sunshine days is June (21.1 days).
The month with the least sunshine days is February (11.2 days).

Average UV index in January
Riner, WY

Average UV index in January - Riner, WY
  • Average UV index in January: 2

The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, March, April, October, November and December (UV index 2).

Average cloud cover in January
Riner, WY

Average cloud cover in January - Riner, WY
  • Average cloud cover in January: 42

The month with the most cloud cover is February (Cloud cover 45).
The months with the least cloud cover are August and September (Cloud cover 13).

Average visibility in January
Riner, WY

Average visibility in January - Riner, WY
  • Average visibility in January: 5mi

The months with the highest visibility are March, April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January, February and December (5mi).

Riner, Wyoming, USA

Weather forecast for your location

1. Click Locate me button
2. Allow the app to use your location